scholarly journals Parasitic infections in tambaqui from eight fish farms in Northern Brazil

2015 ◽  
Vol 67 (4) ◽  
pp. 1070-1076 ◽  
Author(s):  
M.K.R. Dias ◽  
L.R. Neves ◽  
R.G.B. Marinho ◽  
M. Tavares-Dias
Keyword(s):  
Water Quality ◽  
Parasite Species ◽  
Parasitic Infection ◽  
Parasitic Infections ◽  
Ichthyophthirius Multifiliis ◽  
Fish Farms ◽  
Colossoma Macropomum ◽  
Northern Brazil

The aim of this study was to evaluate the parasites and parasite-host relationship in Colossoma macropomum from eight fish farms in Amapá State, Northern Brazil. A total of 12,242,559 parasites were recovered from hosts in the eight fish farms, and 87.4% of fish were infected by one or more parasite species, such as Ichthyophthirius multifiliis, Piscinoodinium pillulare, Trichodinasp. and Tetrahymena sp. (Protozoa), Anacanthorus spathulatus, Linguadactyloides brinkmanni, Mymarothecium boegeri and Notozothecium janauachensis (Monogenoidea), Procamallanus(Spirocamallanus) inopinatus (Nematoda) and Perulernaea gamitanae and Braga patagonica (Crustacea). Ichthyophthirius multifiliis presented dominance, but the greatest levels of parasitism were caused by I. multifiliis, P. pilulare, monogenoideans species and P. gamitanae, and all these parasites had an aggregate dispersion. The eight fish farms have differences in the parasitic infection levels, management and water quality, which are further discussed here.

scholarly journals Parasitic infections of Piaractus mesopotamicus and hybrid (P. mesopotamicus xPiaractus brachypomus) cultured in Brazil

2013 ◽  
Vol 22 (3) ◽  
pp. 407-414 ◽  
Author(s):  
Lidiane Franceschini ◽  
Aline Cristina Zago ◽  
Sérgio Henrique Canello Schalch ◽  
Fabiana Garcia ◽  
Daiane Mompean Romera ◽  
...  
Keyword(s):  
Water Quality ◽  
Parasite Species ◽  
Parasitic Infections ◽  
Ichthyophthirius Multifiliis ◽  
Fish Farms ◽  
Farmed Fish ◽  
Piaractus Mesopotamicus ◽  
Paulo State ◽  
Pathogen Control ◽  
And Storage

This study evaluated the occurrence of parasitic infections in the “pacu” fish Piaractus mesopotamicus and the “patinga” hybrid (P. mesopotamicus x Piaractus brachypomus) in the northwest of São Paulo State, Brazil. Fish from the following three fish farms were evaluated every two months: A, a hatchery and larviculture farm (n = 16 pacu / n = 19 patinga), B, a growout farm (n = 35 patinga) and C, a fee-fishing property (n = 28 pacu / n = 7 patinga). Thirty-five fish from each property were collected from February 2010 to February 2011 and subjected to parasitological analysis. The parasites found were the following:Mymarothecium viatorum, Anacanthorus penilabiatus, Notozothecium janauachensis (Dactylogyridae, Monogenea),Trichodina spp., Ichthyophthirius multifiliis, Chilodonella sp. (Protozoa), Myxobolus spp.,Henneguya spp. (Myxozoa), Rondonia rondoni, Contracaecum sp. (Nematoda), and Dolops carvalhoi(Crustacea). Of the fish examined, 62.9% from “A” and 100% from “B” and “C” were infested with at least one parasite species. Pacu fish (n = 44) showed a higher susceptibility to Anacanthorus penilabiatus infestations, whereas patinga (n = 61) were more susceptible to Mymarothecium viatorum (p < 0.05). Appropriate fish handling (nutrition, transport and storage), in conjunction with monitoring of water quality, can reduce the stress to which the farmed fish are exposed and is essential for pathogen control.

scholarly journals Neoechinorhynchus buttnerae parasitic infection in tambaqui (Colossoma macropomum) on fish farms in the state of Amazonas

2019 ◽  
Vol 45 (2) ◽  
pp. e.499 ◽  
Author(s):  
Edsandra Campos Chagas ◽  
Sandro Loris Aquino-Pereira ◽  
Magda Vieira Benavides ◽  
Franmir Rodrigues Brandão ◽  
Patricia Castro Monteiro, Patricia Oliveira Maciel
Keyword(s):  
Parasitic Infection ◽  
The State ◽  
Fish Farms ◽  
Colossoma Macropomum

scholarly journals Parasitic infections in ornamental cichlid fish in the Peruvian Amazon

2015 ◽  
Vol 24 (1) ◽  
pp. 82-86 ◽  
Author(s):  
Jefferson Yunis Aguinaga ◽  
Paulo Fernandes Marcusso ◽  
Gustavo da Silva Claudiano ◽  
Bruno Tadeu Marotta Lima ◽  
Fernanda de Alexandre Sebastião ◽  
...  
Keyword(s):  
Parasite Species ◽  
Cichlid Fish ◽  
Dry Season ◽  
Seasonal Distribution ◽  
Fish Behavior ◽  
Parasitic Infections ◽  
Ichthyophthirius Multifiliis ◽  
Peruvian Amazon ◽  
Preferred Habitat ◽  
Pterophyllum Scalare

The aim of this study was to evaluate the prevalence and seasonal distribution of the main parasite species in Amazonian ornamental cichlids that affect their trade. The study was conducted from August 2007 to September 2009. We sampled 3042 specimens from 9 different species, of which 9.47% had at least one type of external parasite. 81.25% of the cases occurred in the dry season. Crenicichla anthurus (28.57%) was the most parasitized, followed by Aequidens diadema (26.32%), Pterophyllum scalare (22.69%), Cichlasoma sp. (9.52%), Apistogramma sp. (3.88%) and Symphysodon aequifasciatus (3.66%). Monogenea was the most abundant group of parasites, occurring in 66.67% of the cases, of which 96.88% occurred in the dry season. This parasite infested 95.68% of Pterophyllum scalare, 76.67% of Apistogramma sp, 33.33% of Cichlasoma sp. and 23.81% of Symphysodon aequifasciatus cases. Ichthyophthirius multifiliis infested 100% of Aequidens diadema, 76.19% of Symphysodon aequifasciatus, 66.67% of Cichlasoma sp, 41.67% of Crenicichla anthurus and 23.33% of Apistogramma sp cases. Myxosporidia infested 58.33% of Crenicichla anthurus. Trichodina infested 4.32% of Pterophyllum scalare. The prevalence of these parasites is related to the season, preferred habitat, fish behavior, individual susceptibility and handling of animals during transportation by fishermen.

scholarly journals First record of Neoechinorhynchus buttnerae (Eoacantocephala, Neochinorhynchidae) on Colossoma macropomum (Characidae) in a fish farm in Roraima, Brazil

2018 ◽  
Vol 48 (1) ◽  
pp. 42-45 ◽  
Author(s):  
Jeffson Nobre PEREIRA ◽  
Germán Augusto Murrieta MOREY
Keyword(s):  
Condition Factor ◽  
First Record ◽  
Fish Farm ◽  
Fish Farms ◽  
Colossoma Macropomum ◽  
Relative Condition Factor ◽  
Severe Infections ◽  
Northern Brazil ◽  
Positive Correlations ◽  
First Time

ABSTRACT Severe infections by the acanthocephalan Neoechinorhynchus buttnerae were reported in Colossoma macropomum in fish farms in northern Brazil. The occurrence of the parasite is recorded for the first time in the state of Roraima, Brazil, along with its parasite indexes. Fifty C. macropomum from a fish farm were analyzed. We collected a total of 13474 individual parasites. Neoechinorhynchus buttnerae had a prevalence of 100%, and mean intensity and mean abundance of 269.48. Significant positive correlations were observed between fish standard length, weight and relative condition factor and the number of parasites. Our results showed evident loss of body mass in the parasitized fish. Fish farmers in Roraima should be advised to manage the infection of C. macropomum by N. buttnerae, as massive infections of this parasite can deteriorate the health of the fish.

scholarly journals Parasites of native Cichlidae populations and invasive Oreochromis niloticus (Linnaeus, 1758) in tributary of Amazonas River (Brazil)

2014 ◽  
Vol 23 (1) ◽  
pp. 44-54 ◽  
Author(s):  
Luana Silva Bittencourt ◽  
Douglas Anadias Pinheiro ◽  
Melissa Querido Cárdenas ◽  
Berenice Maria Fernandes ◽  
Marcos Tavares-Dias
Keyword(s):  
Oreochromis Niloticus ◽  
Parasite Species ◽  
Main Channel ◽  
Native Fish ◽  
Ichthyophthirius Multifiliis ◽  
New Host ◽  
Relative Specificity ◽  
Northern Brazil ◽  
Floodplain Area ◽  
Rich Fauna

This study provides the first investigation on acquisition of parasites in invasive O. niloticus by parasite species of native Cichlidae from the Igarapé Fortaleza basin, Northern Brazil. There were examined 576 specimens of 16 species of native cichlids and invasive O. niloticus collected in the main channel and the floodplain area of this tributary of Amazon River. The invasive O. niloticus was poorly parasitized having only Ichthyophthirius multifiliis, Trichodina centrostrigeata, Paratrichodina africana, Trichodina nobilis (Protozoa) and Cichlidogyrus tilapiae (Monogenoidea), and this host has not acquired any parasite species common to the native ichthyofauna region. In contrast, species of native cichlids showed rich fauna of parasites with predominance of Monogenoidea species, larvae and adults of Nematoda, Digenea, Cestoidea and Acanthocephala, besides four species of Protozoa and four Crustacea. However, only T. nobilis was acquired by native fish, the Aequidens tetramerus, which is a new host for this exotic Trichodinidae. In O. niloticus, well established in the region, the small number of helminth species may be associated with its rusticity, good adaptation in the new environment and also the presence of native parasites with relative specificity, but without ability to complete its life cycle in this invasive host of this ecosystem.

scholarly journals Perulernaea gamitanae (Copepoda: Lernaeidae) parasitizing tambaqui (Colossoma macropomum) (Characidae) and the hybrids tambacu and tambatinga, cultured in northern Brazil

2011 ◽  
Vol 63 (4) ◽  
pp. 988-995 ◽  
Author(s):  
M. Tavares-Dias ◽  
L.R. Neves ◽  
E.F. Santos ◽  
M.K.R. Dias ◽  
R.G. B. Marinho ◽  
...  
Keyword(s):  
Fish Farm ◽  
The Other ◽  
Infestation Rate ◽  
Fish Farms ◽  
Colossoma Macropomum ◽  
Piaractus Mesopotamicus ◽  
Attachment Sites ◽  
High Prevalence ◽  
Northern Brazil ◽  
New Hosts

The infestation rate in Colossoma macropomum, hybrid tambacu (C. macropomum x Piaractus mesopotamicus) and hybrid tambatinga (C. macropomum x Piaractus brachypomum) with Perulernaea gamitanae Thatcher and Paredes, 1985 from two fish farms in Amapá State, Brazil was studied. Lernaeid parasites (n=2887) were collected mainly on the tongue and the mouth cavity and also on cartilage of gill arches and filaments. Inflammation and fibrous nodules were observed on the attachment sites of the parasites. The infestation rate varied according to the fish farm and host. The prevalence of P. gamitanae was of 100% in hosts from one fish farm and was lower in the other fish farm. Higher intensity of P. gamitanae occurred in hybrids tambacu and tambatinga, but despite the high prevalence its intensity was moderate. This is the first report on epidemiology of P. gamitanae in cultured fishes from Brazilian Amazonia, and the occurrence of this crustacean parasite in two new hosts, the hybrids tambacu and tambatinga.

scholarly journals Histopathological and hematological biomarkers in tambaqui Colossoma macropomum (Cuvier, 1816) from an environmental protection area of Maranhão, Brazil

2019 ◽  
Vol 14 (1) ◽  
pp. 1
Author(s):  
Jonatas Da Silva Castro ◽  
Camilla Fernanda Lima Sodré ◽  
Caroline Bogéa Souza ◽  
Débora Batista Pinheiro Sousa ◽  
Raimunda Nonata Fortes Carvalho Neta
Keyword(s):  
Water Quality ◽  
Environmental Protection ◽  
Branchial Arch ◽  
Fish Farms ◽  
Colossoma Macropomum ◽  
Mucosal Cells ◽  
Environmental Protection Area ◽  
Protection Area ◽  
Fish Collection ◽  
Nuclear Alterations

This study analyzed histopathological (gill lesions) and hematological (erythrocyte abnormalities) changes in tambaqui (Colossoma macropomum) in order to evaluate the water quality of fish farms in the Environmental Protection Area (EPA) of Maracanã, Maranhão, Brazil. Specimens of tambaqui were captured in two areas of EPA: A1) Serena Lagoon, and A2) River Ambude, in two seasonal periods, rainy and dry. For the hematological analyses, slides were made from the blood smear collected from the branchial arch of the fish. In the laboratory, the gills of each specimen were fixed in 10% formalin and maintained in 70% alcohol until the usual histological technique. The branchial changes were more frequent during the dry season in both areas. In the fish collection in A2, the following changes were noted: mucosal cells (78%), lamellar fusion (90%), lamellar disorganization (100%), lamellar narrowing (100%), and epithelial displacement (96%). In the fish collection in A1, the main lesions were: aneurysm (88%), dilation of the capillaries (82%), rupture of the capillaries (60%). In addition, nuclear alterations, such as binucleate cells (BC), cells with an evaginated nucleus (CEN) and cells with a lobulated carved nucleus (CLCN), were observed in the fish from both areas. The frequency of abnormalities was higher in the fish from A2 (74%) when compared to the fish from A1 (26%). In conclusion, we found that these alterations proved to be sensitive biomarkers capable of differentiating water quality and fish health status in the two systems in the Maracanã EPA.  

scholarly journals Ecology and seasonal variation of parasites in wild Aequidens tetramerus, a Cichlidae from the Amazon

2014 ◽  
Vol 59 (1) ◽  
Author(s):  
Marcos Tavares-Dias ◽  
Marcos Oliveira ◽  
Raissa Gonçalves ◽  
Luis Silva
Keyword(s):  
Seasonal Variation ◽  
Parasite Species ◽  
Environmental Changes ◽  
New Records ◽  
Ichthyophthirius Multifiliis ◽  
Component Community ◽  
Flood Season ◽  
Infection Dynamics ◽  
Abundant Taxon ◽  
Northern Brazil

AbstractThis study is the first investigation on seasonal dynamics of parasites component community of the Aequidens tetramerus from an Amazon River tributary, in Northern Brazil. A total of 239,2407 parasites were recovered from 92 hosts examined from February to October 2011. Such parasites included Ichthyophthirius multifiliis, Tripartiella tetramerii and Trichodina nobilis (Protozoa), Dolops longicauda (Argulidae), Gussevia alioides, Gussevia disparoides (Monogenoidea), Digenea metacercarie, Pseudoproleptus larvae, Anisakidae larvae (Nematoda), Proteocephalidea plerocercoid (Eucestoda) and Gorytocephalus spectabilis (Acanthocephala). Ciliates were the most dominant and abundant taxon, while cestodes were the least prevalent. The parasites showed seasonal variation in their infection dynamics associated with environmental changes during the Amazonian drainage season, except the infection with I. multifiliis. The parasites community in A. tetramerus was also characterized by higher diversity, species richness and uniformity during the drainage season when compared to Amazon flood season. With the exception of T. tetramerii, these parasite species are new records for A. tetramerus.

What are Hidden Facts behind Intestinal Parasitic Infections in Ilam City?

2019 ◽  
Vol 19 (3) ◽  
pp. 284-287
Author(s):  
S. Viesy ◽  
J. Abdi ◽  
Z. Rezaei
Keyword(s):  
Public Health ◽  
Intestinal Parasites ◽  
Parasitic Infection ◽  
Public Health Education ◽  
Health Problems ◽  
Parasitic Infections ◽  
Blastocystis Hominis ◽  
Cross Sectional ◽  
Intestinal Parasitic Infections ◽  
Number Of Patients

Background: Intestinal parasitic infections are the one of the most common health problems in developing countries. Objective: A number of patients die annually due to complications caused by these parasites.Therefore, the aim of this study was to investigate the rate and type of parasitic infections, determine the factors affecting them in Ilam city and also provide strategies to prevent them.In this descriptive cross-sectional study conducted in one of the Ilam labs in 2016, 417 stool specimens were randomly collected. All specimens were examined using direct and ethanol formaldehyde.Suspect specimens were examined using Trichrom staining. Demographic information was also recorded in a questionnaire, and finally the results were analyzed using statistical software SPSS 20.The data were then compared with Chi-square test. Results: Out of the 417 patients examined, 59 (14.1%) were infected with intestinal parasites. The type of parasitic infection in 9.4% was Blastocystis hominis, 3.6% Entamoeba coli, 0.5% Entamoeba histolytica, 0.5% Giardia and 0.2% Trichomonas hominis. Conclusion: Despite the improvement of public health, parasitic infections are still considered as one of the health problems in the city of Ilam. Therefore, proper planning, public health education, raising the level of health in the area and the provision of safe drinking water are some of the ways to reduce parasitic infections in the region.

scholarly journals Application of Dendrimers for Treating Parasitic Diseases

Pharmaceutics ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 343
Author(s):  
Veronica Folliero ◽  
Carla Zannella ◽  
Annalisa Chianese ◽  
Debora Stelitano ◽  
Annalisa Ambrosino ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Water Solubility ◽  
Parasitic Infection ◽  
Three Dimensional ◽  
Medical Knowledge ◽  
High Ratio ◽  
Molecular Volume ◽  
Parasitic Infections ◽  
Parasitic Diseases ◽  
Wide Range

Despite advances in medical knowledge, parasitic diseases remain a significant global health burden and their pharmacological treatment is often hampered by drug toxicity. Therefore, drug delivery systems may provide useful advantages when used in combination with conventional therapeutic compounds. Dendrimers are three-dimensional polymeric structures, characterized by a central core, branches and terminal functional groups. These nanostructures are known for their defined structure, great water solubility, biocompatibility and high encapsulation ability against a wide range of molecules. Furthermore, the high ratio between terminal groups and molecular volume render them a hopeful vector for drug delivery. These nanostructures offer several advantages compared to conventional drugs for the treatment of parasitic infection. Dendrimers deliver drugs to target sites with reduced dosage, solving side effects that occur with accepted marketed drugs. In recent years, extensive progress has been made towards the use of dendrimers for therapeutic, prophylactic and diagnostic purposes for the management of parasitic infections. The present review highlights the potential of several dendrimers in the management of parasitic diseases.

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